共轭正交镜像滤波器组的设计。令N=22,wp=0.45pi,用切比雪夫最佳一致逼近法设计单带滤波器G(z),在得到半带滤波器Hlf(z). -conjugate mirror filters orthogonal design. Order N = 22, wp = 0.45pi. Chebyshev with the best approximation consistent single-band filter design G (z), with the half-band filte

详细完善的滤波器设计程序,先设计一个单带滤波器；由单带滤波器得到半带滤波器,零相位半带滤波器的频率特性，，其虚部应为零，实际上是滤波器的“增益”-filter design